chromosomal abnormality

• 染色体异常

chromosomal abnormality的用法和样例：

例句

1. Chromosome abnormality is an important factor involved in male infertility and gonadal hypoplasis.
   染色体异常是影响男性不育和性腺发育不全的重要因素。
2. The majority of aberrations are sporadic although on rare occasions a chromosomal disorder is directly inherited.
   尽管偶尔可见一种染色体疾病是直接遗传的，但是大量的染色体异常是散发的。